#viewer{
    box-sizing: border-box;
    width: 100%;
    /* height: 200px; */
    height: calc(100vh - 80px);
    overflow: auto;
    padding-bottom: 10px;
}
#operate{
    position:fixed;
    background: #edf6fe;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 84px;
    font-size: 14px;
    user-select: none;
}
#operate:after{
    clear:both;
    content: '';
}
.operate_btns div{
    padding: 10px 0 6px;
    float: left;
    width: 20%;
    text-align: center;
    cursor: pointer;
}
.operate_low:after{
    clear: both;
    content: ''
}
.operate_low div{
    float: left;
    margin-left: 5vw;
}
.operate_low .progress{
    margin-top: 20px;
    width: 70vw;
    height: 4px;
    border-radius: 2px;
    background: #d9dadb;
    position:relative;
}
.operate_low .progress .trunk{
    margin-left: 0;
    width: 0%;
    height: 100%;
    border-radius: 2px;
    background: #2bb283;
}
.operate_low .progress .fastener{
    position: absolute;
    margin-left: 0;
    transform: translateX(0);
    top: -6px;
    left: -6px;
    width: 14px;
    height: 14px;
    background: #2bb283;
    border-radius: 50%;
    border: 2px solid white;
    cursor: pointer;
}
.opBtn:active{
    color: #2bb283;
}
#setting_options{
    display: none;
    position: fixed;
    bottom: 84px;
    right: 0;
    width: 180px;
    height: 35px;
    background: #edf6fe;
    border: 1px solid #2bb283;
}
.setting_row{
    height: 35px;
    line-height: 35px;
    display: flex;
    justify-content: space-around;
}
.setting_row .gray{
    cursor: pointer;
    color: #7a7a7a;
}
.setting_row .gray:active{
    color: #2bb283;
}
.setting_row .act{
    color: #000;
}
/* 目录 */
#catelog{
    display: none;
    position: fixed;
    /* padding-top: 40px; */
    overflow: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 101;
    background-color: white;
    background-image: url(spineBg.png);
    background-size: 100% 100%;
}
#catelog .cate{
    padding: 10px 50px;
    color: #4c4c4b;
    font-size: 18px;
    font-weight: bold;
}
#catelog .cateAct{
    color: #fcc208;
}
.dialog{
    display: none;
    position: fixed;
    z-index: 102;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:rgba(191,192,193,0.47);
}
.msgBox{
    width: 65vw;
    border-radius: 6px;
    padding: 20px;
    background: #ffffff;
    position:absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.msgBox .msg{
    text-align: center;
    color: #2bb283;
    font-size: 16px;
}
.msgBox .foot{
    margin-top: 15px;
    display:flex;
    justify-content: center;
}
.msgBox .foot div{
    text-align: center;
    border-radius: 6px;
    width: 70px;
    height: 30px;
    line-height: 30px;
    font-size: 20px;
    color: white;
    background: #2bb283;
    margin: 0 17px;
}
.reader_hide{
    display: none;
}
#contextMenu{
    background: rgba(0,0,0,0.9);
    color: #ffffff;
    position: fixed;
    z-index: 10;
    padding: 4px 20px;
    border-radius: 6px;
    display: none;
    top: 0;
    left: 0;
}
#contextMenu span{
    cursor: pointer;
}
#thirdLink{
    background: rgba(0,0,0,0.5);
    display: none;
    position: fixed;
    z-index: 110;
    top:0;
    left: 0;
    bottom: 0;
    right: 0;
}
#thirdLink iframe{
    position: absolute;
    width: 80vw;
    height: 60vh;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}